Today and tomorrow, some of Toronto's historic buildings and special places that are normally closed to the public or require tickets will be open for free.
This year, more than 150 buildings and landmarks in Toronto will be open to the public. These include the Aga Khan Museum, the Bata Shoe Museum, and Toronto's first post office.
One of the special attractions to visit is Toronto's City Hall. In this place, you can visit parts such as the mayor's office, the city council room and the memorial hall.
Most buildings will be open on May 25 and 26 from 10 a.m. to 5 p.m., but some may have shorter hours or only be open to visitors on one of the two days.